Working Merge Grandpiece Codes
Last updated August 21, 2026
No working codes right now
We're tracking Merge Grandpiece and will list codes here the moment the developers release them. If you spot one first, send it our way below.
Unconfirmed Codes (1)
We have not confirmed these yet. Try one, then use the works / broken buttons — once enough of you agree, it moves up to the working list or gets dropped.
| Code | Reward | Works? | |
|---|---|---|---|
WELCOMENew | ZOMBIES are coming in waves | Did it work? |
How to redeem codes in Merge Grandpiece
- Launch Merge Grandpiece on Roblox.
- Look for a Codes, Shop or settings button — usually on the side of the screen.
- Paste the code exactly as shown above. Codes are case-sensitive.
- Press redeem to claim your reward.
Codes expire without warning — if one fails, it was almost certainly pulled by the developer.
Found a code we're missing?
Submit it and we'll verify it before it goes live.
About Merge Grandpiece
Merge Grandpiece Press the Settings button to redeem the code: WELCOME ZOMBIES are coming in waves! Merge your crew member, equip them, and fight to survive. [How To Play] • 🧩 Merge Crew member to make them stronger • 🎒 Equip your crew • ⚔️ Fight endless waves of zombies • 👑 Defeat bosses to unlock new stages